The Study Of Information Integration For Subtle Reservoir Exploration

Subtle reservoir were formed by covert traps that could not be found by normal exploration methods. Considering origins and main controlling factors of the formation of traps, and in view of its secretiveness compared with existing exploration methods, subtle reservoir can be divided into tectonic reservoir, stratigraphic reservoir and hydrodynamic reservoir. The theoretical study and exploration practice proved that subtle reservoirs are mainly stratigraphic deposits, which can be further categorized as lithologic deposit (including updip wedge—out deposit, lenticular hydrocarbon pool, physical characteristic deposit), unconformity deposit (stratigraphic overlapped deposit, buried hill and unconformity screened accumulation), and biohermal reservoir. The lacustrine basins in Eastern China mainly developed lithologic subtle reservoirs and unconformity ones.After several decades of high strength exploration & development, Lacustrine hydrocarbon basins in the Eastern China have entered into a highly matured stage of development, the opportunities to discover important structural trap becomes smaller and smaller, the exploration of subtle reservoir hold gradually important status or even pride of place. There are much favorable condition for subtle trap in lacustrine basins with its complicated geological conditions such as multistage tectonic activity, multi-resource deposit and complex face change. So subtle reservoirs have great potentialities. Nevertheless, it is very difficult to depict and evaluate subtle reservoir with only one kind of technology because of its thin formation, rapid changes and complex reservoir condition, so a multi-disciplined research with lacustrine sequence stratigraphy as main.Present technologies and methods for synthesize geology research are relatively too backward to meet the requests of data and graphic processing of subtle reservoir exploration, which leads to a series of problems, e.g., basic materials treating is very heavy, it lack a rapid and efficient interacting feedback mechanism between study results and original data, it cannot be realized in multidiscipline study a accurate and rapid spatial correlation, and analysis, and a efficient integrated management of multi-sourced data is hard to realized .Because of the above problems , the resulting long research cycle and low accuracy of results of exploration makes it impossible to satisfy the requests on rapidness, efficiency and accuracy of exploration of oil fields. So, the author makes a groping study on information integration if subtle reservoir exploration, and probes into the data integration methods and application methods of GIS, to realized the integrative management and synthesize application of basal data and results to...